Milkshake beater head



FIG. 1 is a perspective view of the of the milkshake beater head;

FIG. 2 is a front elevational view thereof with the left and right side views being identical thereto;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for the milkshake beater head, as shown and described. 